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import re
from django.contrib.auth.models import User
from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
from django.db import connection
from django.db.models import Count, Q
from main.utils import cache_function
from main.models import Package
from packages.models import PackageRelation
@cache_function(300)
def get_annotated_maintainers():
maintainers = User.objects.filter(is_active=True).order_by(
'first_name', 'last_name')
# annotate the maintainers with # of maintained and flagged packages
pkg_count_sql = """
SELECT pr.user_id, COUNT(*), COUNT(p.flag_date)
FROM packages_packagerelation pr
JOIN packages p
ON pr.pkgbase = p.pkgbase
WHERE pr.type = %s
GROUP BY pr.user_id
"""
cursor = connection.cursor()
cursor.execute(pkg_count_sql, [PackageRelation.MAINTAINER])
results = cursor.fetchall()
pkg_count = {}
flag_count = {}
for k, total, flagged in results:
pkg_count[k] = total
flag_count[k] = flagged
update_count = Package.objects.values_list('packager').order_by(
'packager').annotate(Count('packager'))
update_count = dict(update_count)
for m in maintainers:
m.package_count = pkg_count.get(m.id, 0)
m.flagged_count = flag_count.get(m.id, 0)
m.updated_count = update_count.get(m.id, 0)
return maintainers
def ignore_does_not_exist(func):
def new_func(*args, **kwargs):
try:
return func(*args, **kwargs)
except (ObjectDoesNotExist, MultipleObjectsReturned):
return None
return new_func
class UserFinder(object):
def __init__(self):
self.cache = {}
self.username_cache = {}
self.email_cache = {}
self.pgp_cache = {}
@staticmethod
@ignore_does_not_exist
def user_email(name, email):
if email:
return User.objects.get(email=email)
return None
@staticmethod
@ignore_does_not_exist
def username_email(name, email):
if email and '@' in email:
# split email addr at '@' symbol, ensure domain matches
# or is a subdomain of archlinux.org
# TODO: configurable domain/regex somewhere?
username, domain = email.split('@', 1)
if re.match(r'^(.+\.)?archlinux.org$', domain):
return User.objects.get(username=username)
return None
@staticmethod
@ignore_does_not_exist
def profile_email(name, email):
if email:
return User.objects.get(userprofile__public_email=email)
return None
@staticmethod
@ignore_does_not_exist
def user_name(name, email):
# yes, a bit odd but this is the easiest way since we can't always be
# sure how to split the name. Ensure every 'token' appears in at least
# one of the two name fields.
if not name:
return None
name_q = Q()
for token in name.split():
# ignore quoted parts; e.g. nicknames in strings
if re.match(r'^[\'"].*[\'"]$', token):
continue
name_q &= (Q(first_name__icontains=token) |
Q(last_name__icontains=token))
return User.objects.get(name_q)
def find(self, userstring):
'''
Attempt to find the corresponding User object for a standard
packager string, e.g. something like
'A. U. Thor <author@example.com>'.
We start by searching for a matching email address; we then move onto
matching by first/last name. If we cannot find a user, then return None.
'''
if not userstring:
return None
if userstring in self.cache:
return self.cache[userstring]
name = email = None
matches = re.match(r'^([^<]+)? ?<([^>]*)>?', userstring)
if not matches:
name = userstring.strip()
else:
name = matches.group(1)
email = matches.group(2)
user = None
find_methods = (self.user_email, self.profile_email,
self.username_email, self.user_name)
for matcher in find_methods:
user = matcher(name, email)
if user is not None:
break
self.cache[userstring] = user
self.email_cache[email] = user
return user
def find_by_username(self, username):
if not username:
return None
if username in self.username_cache:
return self.username_cache[username]
try:
user = User.objects.get(username=username)
except User.DoesNotExist:
user = None
self.username_cache[username] = user
return user
def find_by_email(self, email):
if not email:
return None
if email in self.email_cache:
return self.email_cache[email]
user = self.user_email(None, email)
if user is None:
user = self.profile_email(None, email)
if user is None:
user = self.username_email(None, email)
self.email_cache[email] = user
return user
def find_by_pgp_key(self, pgp_key):
if not pgp_key:
return None
if pgp_key in self.pgp_cache:
return self.pgp_cache[pgp_key]
try:
user = User.objects.get(
userprofile__pgp_key__endswith=pgp_key)
except User.DoesNotExist:
user = None
self.pgp_cache[pgp_key] = user
return user
def clear_cache(self):
self.cache = {}
self.username_cache = {}
self.email_cache = {}
self.pgp_cache = {}
# vim: set ts=4 sw=4 et:
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